and frito lay teamed up for pepsi chicken potato chips, supposedly tasting something like a sugary barbecue chip. popularity of cooking chicken in coala. it's not the first regional cuisine potato chip. it sells a salty watermelon flavor in;q> no go. but i'm not going there. >> it's an acquired taste, i believe. >> putting tests to the test. >> open book, closed book? cheat sheet? one university study makes a surprising finding about the most effective way to learn. also ahead... all they want for christmas is a lot of cash. why this school district hopes that the mayor will agree. live in city hall, the story is ahead. >> i'm dan ashley. coming up at 5:00, kicking for a cause, bay area karate instructor who grew up in newtown, connecticut. he's finding a unique way to give back to family who's suffered such a great loss. and a simple way you can help a local school help find a campus garden. >> now, here is a lack at what is ahead on world news at 5:30. >> tonight on world news, there is a big backlash underway tonight against people profiting from selling assault weapons and ch